'''Sir Joseph Dalton Hooker''' (30 June 1817 – 10 December 1911) was one of the greatest British botanist
s and explorer
s of the 19th century. He was a founder of geographical botany and Charles Darwin's
closest friend. For twenty years he served as Director of the Royal Botanical Gardens, Kew
, succeeding his father, William Jackson Hooker
, and was awarded the highest honours of British science.
[Huxley, Leonard 1918. ''Life and letters of Sir Joseph Dalton Hooker OM GCSI''. London, Murray.] [Turrill W.B. 1963. ''Joseph Dalton Hooker: botanist, explorer and administrator''. Nelson, London.]